(19)
(11) EP 1 361 562 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.03.2005 Bulletin 2005/11

(43) Date of publication A2:
12.11.2003 Bulletin 2003/46

(21) Application number: 03017304.1

(22) Date of filing: 05.02.2001
(51) International Patent Classification (IPC)7G09G 3/32, G09G 3/20
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

(30) Priority: 03.02.2000 JP 2000032645
04.09.2000 JP 2000266989

(62) Application number of the earlier application in accordance with Art. 76 EPC:
01949055.6 / 1280126

(71) Applicant: Nichia Corporation
Anan-shi, Tokushima-ken (JP)

(72) Inventors:
  • Tsuji, Ryuhei
    Anan-shi, Tokushima (JP)
  • Nakano, Yoshiyuki
    Anan-shi, Tokushima (JP)
  • Nagai, Yoshifumi
    Anan-shi, Tokushima (JP)
  • Tsujimoto, Hiroshi
    Anan-shi, Tokushima (JP)

(74) Representative: Menges, Rolf, Dipl.-Ing. 
Ackmann, Menges & Demski, Patentanwälte Erhardtstrasse 12
80469 München
80469 München (DE)

   


(54) Image display apparatus using light emitting elements and control method thereof


(57) An image display exhibiting high reproducibility by correcting variation in the chromaticity of light emitting elements and thereby uniforming the color tone of pixels, and a control method thereof. The image display comprises a display section (10) where light emitting elements of a plurality of color tones are arranged for each pixel, a drive section (50) for supplying the light emitting elements of each pixel with a drive current according to image data concerning the color tones, and a chromaticity correcting section (11) for distributing a specified part of drive current, supplied from the drive section (50) to a light emitting element corresponding to at least one of the color tones of each pixel, to a light emitting element corresponding to one or more other color tone of the pixel.







Search report